How to Send a MMS Message Using Your iPhone [iPhone OS 3.0]
Here are the steps that has to be followed in-order to utilize the iPhone and the new 3.0 firmware.
Note: Here, your network carrier must support MMS, charged will be extra for MMS messaging if you do not have a data plan.
The first steps require you tap to launch the Messages application from the SpringBoard.
Take a photo directly from the messages app and press the Camera button again. Select Take Photo from the menu that appears.
Choose an image and then press the Send icon at the bottom left of the screen. Choose MMS from the menu that appears.
A new mail message will be created with the image in the body of the message.